Improvement in machines for driving brush-handles



` P. PEARTREE. Machine fqr` Driving Brush-Handles.

:129,748. Patented my 23,1872.'

` the arcs `of circles.

i UNITED STA'rEs PETER PEEETEEE, or

PATENT OFFICE.

AMES, 'or SAME PLAGE.

` I, IMPROVEMENT IN IvIAcHINEs FOR DRIVING BiRusH-HANDLES.

Specification forming part of Letters Patent No. 129,748,`dated July`23, 1872.

Specification describing 'a certain Improvement in Machine for DrivingBrush-Handles, invented by PETER PEAR'IREE, of Lansingburg, in thecounty of Rensselaer and State of New York. I

Figure 1 is a front view of my improved machine, parts being broken awayto show the i construction.

the same taken through the line :I: m, Fig. 1. I

Fig. 2 is ahorizontal section of M'y invention has for its object tofurnish an improved machinefor driving brush-handlesv which shall besimple in construction, convenlent 1n use, and effective in operation;and-it I. consists in the construction and combination of the variousparts of the machine,- as hereinafter more fully described. I `A is theframe of the machine. B are tw guide-plates, placed the one directlyabove the I other, and which are connected with and rmly supported fromthe lower part of the frame A `by arms or a frame-work, C. Through the`plates B are formed holes for the passage of the vertical rod D, to thelower end of which is attached or upon it is formed a foot-rest or jtreadle, E. The rodD is held up by a coiled `or other spring, F, coiledaround or connected with said rod D. To the upper end of the verticalrod D are pivoted the inner ends of two bars, G, which pass out through.openings or slots in the frame A, and to their outer ends are pivotedthe lower ends of the two `levers lI.` The rods or bars Gr may each bemade in one piece; or each may be made in two pieces, the adjacent endsof said pieces being connected by a right-and-left nut, so that byturning the said nut in one or the other direction the said rods or barsmay be lengthened or shortened as may be desired. This latterconstruction prefer on accountof the great facility it gives forcentering the brush-handle,

as hereinafter described. The levers H are pivoted to lugs or brackets Iattached to the frame-work A. Tothe upper ends of the levers H arepivoted the outer ends of the short bars J, to the inner ends of whichare pivoted A, where they are adjustably secured in place I by hand-nutsM, which are screwed upon the outer ends ofthe said guide-blocks L, asshown in Figs. 1 and 2. By this construction the guide-blocks L, andconsequently the rods K, may be adjusted higher or lower, according tothe size of the brush to be operated upon. To enable this'to be doneseveral holes are formed in the upper part of the levers H to receivethe pivoting-pins that connect the said levers H with the short bars JThe innerl ends of the rods K are forked or notched, as shown in Fig. 2,t9 receive and grasp `the brush-handle N, and hold it while beingdriven. If I from any cause the point of the handle' N, while being heldby the holding-rods K, should not be exactly over the center ofthebrush-head O, it may be centered by adjusting the length of the barsG in the manner hereinbefore described, or in any other convenientmanner. The butt of the brush-head O rests upon a die or plate, P,havinga hole formed through its center for the passage of the brush-handle.The stem or shank of the die P fits into a hole in the bed-plate ortable of the machine, and is detachably secured in place by a set-screw,Q, as

shown in Fig. 2. In the case of filled brushthe case of solidbrush-heads, the dies should l be made with a shallow socket or recessto receive the butt of the brush-head, so that it may j be held securelyand steadily while the handle is being driven. The handle is driven bythe plunger or driver'R, upon the lower end of whichare formed one ormore spurs to penetrate the end of the handle N, and thuskeep itinplace. In the case of round handles, one spur would be sufticient; butin the case of oval handles there should be two or more spurs to keepthe said handles from. turningupon the ends of the holding-rods K. Theupper end of the plunger or drivin g-rod R is attached to the lower endof the rack-bar S, which is` formed upon or attached to the forward sideof the plate T, the side edges of which enter groovesin the side partsof the upper part of the frame A. The teeth of the rack-bar S mesh intothe teeth of the small gear-wheel U attached to the short shaft V, whichrevolves in bearings in the upper part of the frame A, and to which thepower is applied. By this construction, when the handle to be driven hasbeen arranged as hereinbefore described, by revolving the shaft V in oneor the other direction the handle will be forced down into thebrush-head, or the driver raised from said handle. W is a set-screw,which passes down through a lug formed upon the upper end o1 therack-bar S, so that as the said rack-bar is lowered to drive thebrush-handles the lower end of the said set-screw may strike thc top baror plate of the frame A, and stop the driver at the required point. Thisconstruction enables the operator, by simply adjusting the setscrew W,to drive all the handles to exactly the required point, which is almostimpossible to be done when the handles are driven by hand. Power may beapplied to the shaft V by any convenient and suitable gearing. Onearrangement for doing this is shown in the drawing, which I will nowdescribe. T0 the outer end of the shaft V is attached a smallgear-wheel, X, into the teeth of which mesh the teeth of an intermediategear-wheel, Y, into the teeth of which mesh the teeth of a gear-wheel,Z, to the journal of which is attached a crank, A', to which the poweris applied. The gear-wheel Y revolves upon a gudgeon attached to the'frame A, and the journals of the gear-wheel Z revolve in bearings inthe said frame and in a bracket attached to it.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination of the guides B, arms or frame C,vertical rod D provided at its lower end with a foot-rest or treadle, E,coiled or equivalent spring F, bars G, whether made solid or extendable,levers H, short bars J, holding-rods K, and adjustable guide-blocks L Mwith each other and with the ame A, for holding the brush-handle whilebeing driven, substantially as herein shown and described.

2. The combination of the toothed rack S T, driving-rod R, gear-wheel U,and shaft V with each other and with the holding-rods K and frame A, fordriving the brush-handle, substantially as herein shown and described.

3. The combination of the set-screw W with the rack S and driver R andwith the frame A, for adjusting the driver to drive the handle exactlyto the required point, substantially as herein shown and described.

PETER PEARTREE. Witnesses:

EUGENE HYATT, A. C. GoMsrocK.

